* Copyright (c) 2026 Huawei Technologies Co., Ltd. All Rights Reserved.
* This program is free software, you can redistribute it and/or modify it under the terms and conditions of
* CANN Open Software License Agreement Version 2.0 (the "License").
* Please refer to the License for details. You may not use this file except in compliance with the License.
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
* See LICENSE in the root of the software repository for the full text of the License.
*/
#ifndef KERNELS_UTIL_MEMORY_POOL_H_
#define KERNELS_UTIL_MEMORY_POOL_H_
#include <cstdlib>
#include <cstdint>
#include <memory>
#include <atomic>
#include <list>
#include <thread>
#include <mutex>
#include <queue>
#include <functional>
#include <condition_variable>
#include "tensorflow/core/framework/tensor.h"
#include "tensorflow/core/lib/core/threadpool.h"
namespace tensorflow {
struct MemoryBlock {
void *ptr;
uint64_t data_size;
MemoryBlock(void *in_ptr, uint64_t in_size) : ptr(in_ptr), data_size(in_size) {}
};
class MemoryPool {
public:
MemoryPool();
Status MallocMemory(void *&buffer, uint64_t args_size);
void ReleaseMemory();
Status FreeAllMemory();
~MemoryPool();
private:
bool FreeMemoryList(std::list<MemoryBlock> &memory_list) const;
std::mutex memory_pool_lock_;
std::list<MemoryBlock> used_memory_list_;
std::list<MemoryBlock> free_memory_list_;
};
}
#endif
